When we were making the prototypes in the various materials and range of hardnesses… it was done it the basic clear “colour”. Once the material and hardness were determined, we made the flesh tone colour for the production run.
I also was not certain which way to go clear or flesh tone but the problem with clear was that it gets cloudy with use as the fingers leave prints behind. Whereas the flesh tone maintains a nice and clean appearance. So it was decided in favour of the flesh tone colour.